CVE-2017-7814

Impact:
Moderate
Public Date:
2017-09-28
CWE:
CWE-494
Bugzilla:
1496652: CVE-2017-7814 Mozilla: Blob and data URLs bypass phishing and malware protection warnings (MFSA 2017-22)

The MITRE CVE dictionary describes this issue as:

File downloads encoded with "blob:" and "data:" URL elements bypassed normal file download checks though the Phishing and Malware Protection feature and its block lists of suspicious sites and files. This would allow malicious sites to lure users into downloading executables that would otherwise be detected as suspicious. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.

Find out more about CVE-2017-7814 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

CVSS3 Base Score 6.1
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Impact Low
Availability Impact None

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 6 (firefox) RHSA-2017:2831 2017-09-28
Red Hat Enterprise Linux 7 (thunderbird) RHSA-2017:2885 2017-10-11
Red Hat Enterprise Linux 7 (firefox) RHSA-2017:2831 2017-09-28
Red Hat Enterprise Linux 6 (thunderbird) RHSA-2017:2885 2017-10-11

Acknowledgements

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges François Marier as the original reporter.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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